Change.0k is a self initiated application extension concept. It rounds up the payments made automatically and donates the difference towards a chosen cause.

An annual summary then lets the user track past donations for tax purposes.
Donating may be gratifying but everyone can’t afford to donate a lump sum.

We know that most customers don’t mind rounding up the bill when making physical payments, what if we translated this to digital currencies? Tiny changes make a huge impact!